Home / 185,815.38-256,419.36-105,250.35

Finding the Fourth Proportional to 185,815.38, 256,419.36 and 105,250.35

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Solution

The fourth proportional to 185,815.38, 256,419.36 and 105,250.35 is: 145,242.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    185,815.38 : 256,419.36 = 105,250.35 : x
  2. Step 2: Convert to fraction form
    185,815.38/256,419.36 = 105,250.35/x
  3. Step 3: Cross multiply
    185,815.38x = 256,419.36 × 105,250.35
  4. Step 4: Simplify right side
    185,815.38x = 26,988,227,386.78
  5. Step 5: Solve for x
    x = 26,988,227,386.78/185,815.38
  6. Step 6: Final answer
    x = 145,242.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.